Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb2047d5ff1f5462…

MALICIOUS

PDF

51.7 KB Created: 2020-08-19 01:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea206eac5cedd21949e8a74bc416d039 SHA-1: 7e3c221d35ff652a2557409542b67effeb1170e9 SHA-256: eb2047d5ff1f54627b65c2b2ed9b7925fa0dcf4b5541da946872760813991919
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains embedded links that redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'Chevrolet aveo 2010 manual pdf'. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to obscure the malicious destination. The SE_PASSWORD_ARCHIVE_LURE heuristic suggests this PDF might be part of a multi-stage attack where the actual payload is in a password-protected archive.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=chevrolet+aveo+2010+manual+pdf
    • http://muxomu.operationhelpahero.org/uploads/1/3/1/8/131871390/godove_madididazagim_ropetigunigato_vamis.pdf
    • http://files.bluemountainnsy.com/uploads/1/3/1/3/131380342/mozapusomeside-jitukibobusi-sesakepolure-jajuritaji.pdf
    • http://files.newbeginningssanangelo.com/uploads/1/3/1/8/131856725/7452454.pdf
    • http://sirup.jorellmelendezbadillo.com/uploads/1/3/1/8/131856713/jebixo_pevadiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/77434700637.pdf
    • https://cdn.shopify.com/s/files/1/0438/4754/9088/files/57993311330.pdf
    • https://cdn.shopify.com/s/files/1/0429/7362/6524/files/51063439389.pdf
    • https://cdn.shopify.com/s/files/1/0435/2812/6618/files/21027530022.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/ap_biology_textbook_campbell_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/7291/3557/files/algorithm_and_flowchart_notes.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/77485585291.pdf
    • https://cdn.shopify.com/s/files/1/0430/4394/6649/files/asset_allocation_balancing_financial_risk_gibson.pdf
    • https://cdn.shopify.com/s/files/1/0437/3970/9605/files/elementos_del_genero_narrativo.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/93131105448.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c7c.bin
55d1ef368efee90512146a536df542f6c7e83cfa953bd106f30525a4c35e0825
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7C 5392 bytes
font_01_sfnt_off00009eb6.bin
53ab574c7718502d5fddc29e1920b442b4a6a76614f77f14e16d56a4bf0e8bcd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB6 10260 bytes